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Trojan.Zefarch

Everytime my computer reboots I get the same message from my anti-virus (I use norton 360) saying that overlay.xul(Trojan.Zefarch)detected by Auto Protect and it blocks the file but thats all my AV can seem to do. The files keep on being created in my appdata folder as chrome files.
I have noticed that I have been redirected to various anti spyware sites while on internet explorer.
I have attatched all of the DDS and GMER logs with my post.
Any help at all on how to completely remove this trojan would be greatly appreciated!

My name is Gringo and I'll be glad to help you with your computer problems.

Somethings to remember while we are working together.

Do not run any other tool untill instructed to do so!

Please Do not Attach logs or put in code boxes.

Tell me about any problems that have occurred during the fix.

Tell me of any other symptoms you may be having as these can help also.

Do not run anything while running a fix.

We apologize for the delay in responding to your request for help. Here at Bleeping Computer we get overwhelmed at times, and we are trying our best to keep up. Please note that your topic was not intentionally overlooked. Our mission is to help everyone in need, but sometimes it takes just a little longer to get to every request for help. No one is ignored here.

Click on the Watch Topic Button and select Immediate Notification and click on proceed, this will help you to get notified faster when I have replied and make the cleaning process faster.

In order for me to see the status of the infection I will need a new set of logs to start with.

Please print out or make a copy in notpad of any instructions given, as sometimes it is necessary to go offline and you will lose access to them.

Also whether it has anything to do with the trojan or not i was geting a message coming up saying that there was an error loading KBDBDI.dlll. It only started popping up the last time I went on my laptop. Since then I have rebooted my laptop and it hasn't come up since.

Please print out or make a copy in notpad of any instructions given, as sometimes it is necessary to go offline and you will lose access to them.

Run Combofix:

You may be asked to install or update the Recovery Console(Win XP Only) if this happens please allow it to do so (you will need to be connected to the internet for this)

Before you run Combofix I will need you to turn off any security software you have running, If you do not know how to do this you can find out >here< or >here<

Combofix may need to reboot your computer more than once to do its job this is normal.

You can download Combofix from one of these links. I want you to save it to the desktop and run it from there.Link 1Link 2Link 31. Close any open browsers or any other programs that are open.2. Close/disable all anti virus and anti malware programs so they do not interfere with the running of ComboFix.

Double click on combofix.exe & follow the prompts. When finished, it will produce a report for you.

Note 1: Do not mouseclick combofix's window while it's running. That may cause it to stall

Note 2: If you recieve an error "Illegal operation attempted on a registery key that has been marked for deletion." Please restart the computer

"information and logs"

In your next post I need the following

Log from Combofix

let me know of any problems you may have had

How is the computer doing now?

Gringo

I Close My Topics If You Have Not Replied In 5 Days If You Will Be Longer Please Let Me Know

If I Have Not Replied To One Of My Topics In 48 Hrs Please Bump The Topic

My help is free, however, if you wish to make a small donation to show your appreciation or to help me continue the fight against Malware, then click here --><-- Don't worry every little bit helps.

Hi,
Sorry for the delay in posting combofix logs.
My laptop seems to be running better than before.
After running combofix I re-enabled my anti virus and rebooted my laptop;
usually when I reboot i get a message from norton about detecting the trojan zefarch but I didn't get the message this time so its looking hopefull.
Jen.

IMPORTANT I notice there are signs of one or more P2P (Person to Person) File Sharing Programs on your computer.

Please note that as long as you are using any form of Peer-to-Peer networking and downloading files from non-documented sources, you can expect infestations of malware to occur Once upon a time, P2P file sharing was fairly safe. That is no longer true. P2P programs form a direct conduit on to your computer, their security measures are easily circumvented and malware writers are increasingly exploiting them to spread their wares on to your computer. Further to that, if your P2P program is not configured correctly, your computer may be sharing more files than you realise. There have been cases where people's passwords, address books and other personal, private, and financial details have been exposed to a file sharing network by a badly configured program.

Please read these short reports on the dangers of peer-2-peer programs and file sharing.

Note:Save your work. TFC will automatically close any open programs, let it run uninterrupted. It shouldn't take longer take a couple of minutes, and may only take a few seconds. Only if needed will you be prompted to reboot.

Note: If MBAM encounters a file that is difficult to remove, you will be presented with 1 of 2 prompts. Click OK to either and let MBAM proceed with the disinfection process. If asked to restart the computer, please do so immediately. Failure to reboot will prevent MBAM from removing all the malware.

These logs are looking very good, we are almost done!!! Just one more scan to go.

:Remove unneeded startup entries:

This part of the fix is purely optional These are programs that start up when you turn on your computer but don't need to be, any of these programs you can click on their icons (or start from the control panel) and start the program when you need it. By stopping these programs you will boot up faster and your computer will work faster.

There are some minor things in your online scan that should be removed.

delete files

Copy all text in the quote box (below)...to Notepad.

@echo off
del /f /s /q "C:\Downloads\Nero-9.4.12.3d_free.exe"
del %0

Save the Notepad file on your desktop...as delfile.bat... save type as "All Files"
It should look like this: <--XP<--vista

Double click on delfile.bat to execute it.
A black CMD window will flash, then disappear...this is normal.

The files and folders, if found...will have been deleted and the "delfile.bat" file will also be deleted.

The rest of the Online scan is only reporting backups created during the course of this fix C:\Qoobox\Quarantine\, and/or items located in System Restore's cache C:\System Volume Information\, Whatever is in these folders can't harm you unless you choose to perform a manual restore. the following steps will remove these backups.

Very well done!! This is my general post for when your logs show no more signs of malware - Please let me know if you still are having problems with your computer and what these problems are.

The following procedure will implement some cleanup procedures. It will also reset your System Restore by flushing out previous restore points and create a new restore point. It will also remove all the backups our tools may have made.

Any programs and logs that are left over you can just be deleted from the desktop. TFC is a free temp file cleaner that is very easy to use, I would keep this and use before you do any scans or when you want to free up some space.

:DeFogger:

To re-enable your Emulation drivers, double click DeFogger to run the tool.

It is also possible for other programs on your computer to have security vulnerability that can allow malware to infect you. Therefore, it is also a good idea to check for the latest versions of commonly installed applications that are regularly patched to fix vulnerabilities. You can check these by visiting Secunia Software Inspector

:Turn On Automatic Updates:

Turn On Automatic Updates1. Click Start, click Run, type sysdm.cpl, and then press ENTER. 2. Click the Automatic Updates tab, and then click to select one of the following options. We recommend that you select the Automatic (recommended) Automatically download recommended updates for my computer and install them

If you click this setting, click to select the day and time for scheduled updates to occur. You can schedule Automatic Updates for any time of day. Remember, your computer must be on at the scheduled time for updates to be installed. After you set this option, Windows recognizes when you are online and uses your Internet connection to find updates on the Windows Update Web site or on the Microsoft Update Web site that apply to your computer. Updates are downloaded automatically in the background, and you are not notified or interrupted during this process. An icon appears in the notification area of your taskbar when the updates are being downloaded. You can point to the icon to view the download status. To pause or to resume the download, right-click the icon, and then click Pause or Resume. When the download is completed, another message appears in the notification area so that you can review the updates that are scheduled for installation. If you choose not to install at that time, Windows starts the installation on your set schedule.

or visit http://www.windowsupdate.com regularly. This will ensure your computer has always the latest security updates available installed on your computer. If there are new updates to install, install them immediately, reboot your computer, and revisit the site until there are no more critical updates.

:antispyware programs:

I would reccomend the download and installation of some or all of the following programs (all free), and the updating of them regularly:

WinPatrol As a robust security monitor, WinPatrol will alert you to hijackings, malware attacks and critical changes made to your computer without your permission. WinPatrol takes snapshot of your critical system resources and alerts you to any changes that may occur without your knowledge.

Malwarebytes' Anti-Malware Malwarebytes' Anti-Malware is a new and powerful anti-malware tool. It is
totally free but for real-time protection you will have to pay a small one-time fee. We used this to help clean your computer and recomend keeping it and using often.

It appears that this issue is resolved, therefore I am closing the topic. If that is not the case and you need or wish to continue with this topic, please send me or any Moderator a Personal Message (PM) that you would like this topic re-opened.

I Close My Topics If You Have Not Replied In 5 Days If You Will Be Longer Please Let Me Know

If I Have Not Replied To One Of My Topics In 48 Hrs Please Bump The Topic

My help is free, however, if you wish to make a small donation to show your appreciation or to help me continue the fight against Malware, then click here --><-- Don't worry every little bit helps.